Title:  Hydnocarpic Acid 
CAS Registry Number:  459-67-6 
CAS Name:  (1R)-2-Cyclopentene-1-undecanoic acid 
Additional Names:  11-(2-cyclopenten-1-yl)undecanoic acid 
Molecular Formula:  C16H28O2 
Molecular Weight:  252.39 
Percent Composition:  C 76.14%, H 11.18%, O 12.68% 
Literature References:  Component of chaulmoogra oil; naturally occurring in d-form.  Isoln from seeds of Hydnocarpus wightiana Blume or H. anthelmintica Pierre, Flacourtiaceae, or from the seeds of Taraktogenos kurzii King, Bixaceae:  F. B. Power, M. Barrowcliff, J. Chem. Soc. 87, 884 (1905); ibid. 91, 557 (1907).  Structure:  R. L. Shriner, R. Adams, J. Am. Chem. Soc. 47, 2727 (1925).  Synthesis of dl-hydnocarpic acid:  D. G. M. Diaper, J. C. Smith, Biochem. J. 42, 581 (1948).  Toxicity data: Anderson, Int. J. Lepr. 2, 39 (1934).  Antimicrobial spectrum:  P. L. Jacobsen, L. Levy, Proc. West. Pharmacol. Soc. 15, 44 (1972).  Mechanism of action:  eidem, Antimicrob. Agents Chemother. 3, 373 (1973).  Chromatographic determn in seed oils:  W. W. Christie et al., Lipids 24, 116 (1989). 
Properties:  Colorless, glistening leaflets from petr ether + ethyl acetate, mp 59-60°.  [a]D +68.3° (chloroform).  Sparingly sol in usual organic solvents; sol in chloroform. 
Melting point:  mp 59-60° 
Optical Rotation:  [a]D +68.3° (chloroform) 
  
Derivative Type:  dl-Form  
Properties:  Pearly plates from alcohol, ethyl actate or petr ether + ethyl acetate, mp 59-59.5°. 
Melting point:  mp 59-59.5° 
  
Derivative Type:  Sodium salt  
Additional Names:  Sodium hydnocarpate;  hydnocarpate sodium;  sodium gynocardate 
Properties:  Yellowish powder.  Sol in water, alc.  The aq soln is alkaline.  MLD in rats (mg/kg):  100-125 i.v. (Anderson). 
Toxicity data:  MLD in rats (mg/kg):  100-125 i.v. (Anderson) 
  
Therap-Cat:  Antibacterial (leprostatic). 
Keywords:  Antibacterial (Leprostatic).   |